package main 
 
import "fmt" 
 
func MyPrintf(args ...interface{}) { 
    for _, arg := range args { 
        switch arg.(type) { 
            case int:   
                fmt.Println(arg, "is an int value.") 
            case string:  
                fmt.Println(arg, "is a string value.") 
            case int64:  
                fmt.Println(arg, "is an int64 value.") 
            default: 
                fmt.Println(arg, "is an unknown type.") 
        } 
    } 
} 
 
func main() { 
    var v1 int = 1 
    var v2 int64 = 234 
    var v3 string = "hello" 
    var v4 float32 = 1.234  
    MyPrintf(v1, v2, v3,  v4) 
} 